... time error not more than 5s3. Adopting inset crystal hardware clock circuit, with temperature compensation circuit to ensure under the normal ... working conditions, the time error of clock to be within 30s/month .Automatically adjust the time, ... wide temperature (-30ºC--80ºC) LCD display ; 2. 8 digit LCD display, 6 integer and 2decimal; 3. Display the data of current date, time ...